HMC1061 and HMC661 thermal resistance

Question

Hi, 
 Can you provide the junction-to-case thermal resistance (both top and bottom) of HMC661 and HMC1061? 
 Thank you.

salemdar · Accepted Answer

Hi Ning, 
 Thermal resistance of junction to package bottom is enough for most of the characterisation because the total thermal resistance is dominated by the resistance to the bottom. 
 You can use these values: 
 - HMC661: 20C/W 
 - HMC1061 : 16C/W 
 Regards 
 Sinan